ES2401081T3 - Ultrasonic welding device - Google Patents

Ultrasonic welding device Download PDF

Info

Publication number
ES2401081T3
ES2401081T3 ES06009789T ES06009789T ES2401081T3 ES 2401081 T3 ES2401081 T3 ES 2401081T3 ES 06009789 T ES06009789 T ES 06009789T ES 06009789 T ES06009789 T ES 06009789T ES 2401081 T3 ES2401081 T3 ES 2401081T3
Authority
ES
Spain
Prior art keywords
anvil
arm lever
parallel arm
ultrasonic
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
ES06009789T
Other languages
Spanish (es)
Inventor
Hans-Peter Dr. Wild
Eberhard Kraft
Frank Lechert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INDAG Gesellschaft fuer Industriebedarf mbH and Co Betriebs KG
Original Assignee
INDAG Gesellschaft fuer Industriebedarf mbH and Co Betriebs KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by INDAG Gesellschaft fuer Industriebedarf mbH and Co Betriebs KG filed Critical INDAG Gesellschaft fuer Industriebedarf mbH and Co Betriebs KG
Application granted granted Critical
Publication of ES2401081T3 publication Critical patent/ES2401081T3/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
    • B65B51/225—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding by ultrasonic welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/26—Auxiliary equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • B29C66/81611—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material by resilient material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8163—Self-aligning to the joining plane, e.g. mounted on a ball and socket
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8324—Joining or pressing tools pivoting around one axis
    • B29C66/83241—Joining or pressing tools pivoting around one axis cooperating pivoting tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
    • B29C66/8432—Machines for making separate joints at the same time mounted in parallel or in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81422—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being convex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8227—Transmission mechanisms using springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8324—Joining or pressing tools pivoting around one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7128—Bags, sacks, sachets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Package Closures (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

Dispositivo para soldadura ultrasónica que comprende como mínimo un martillo ultrasónico (16) y comomínimo un yunque, caracterizado porque el yunque (1) está montado en una palanca de brazos paralelos (2) que presenta dos palancas (6, 7)paralelas entre sí, que están montadas con capacidad de giro alrededor de ejes (8, 9), de tal manera que segarantiza el paralelismo entre una superficie del yunque y el martillo ultrasónico en cualquier posición.Device for ultrasonic welding comprising at least one ultrasonic hammer (16) and a common anvil, characterized in that the anvil (1) is mounted on a lever with parallel arms (2) that has two levers (6, 7) parallel to each other, which are mounted with the ability to rotate around shafts (8, 9), in such a way that it guarantees the parallelism between an anvil surface and the ultrasonic hammer in any position.

Description

Dispositivo para soldadura ultrasónica Ultrasonic welding device

La presente invención se refiere a un dispositivo para la soldadura ultrasónica. Este dispositivo se utiliza, por ejemplo, para cerrar bolsas laminares en las que se ha de cerrar el extremo superior de las mismas tras llenar la bolsa. Para cerrar las bolsas laminares el extremo superior es fijado entre un yunque y un martillo ultrasónico y seguidamente soldado mediante la aplicación de ultrasonidos que son emitidos por el martillo ultrasónico. The present invention relates to a device for ultrasonic welding. This device is used, for example, to close laminar bags in which the upper end thereof must be closed after filling the bag. To close the laminar bags the upper end is fixed between an anvil and an ultrasonic hammer and then welded by the application of ultrasounds that are emitted by the ultrasonic hammer.

Para conseguir una buena soldadura resulta ventajoso que el yunque y el martillo ultrasónico tengan un buen contacto plano para garantizar el acoplamiento de las ondas ultrasónicas de forma plana en el material laminar. In order to achieve a good weld, it is advantageous that the anvil and the ultrasonic hammer have a good flat contact to ensure that the ultrasonic waves are flatly coupled to the sheet material.

Para poder fijar el material a soldar entre el martillo ultrasónico y el yunque, estas dos partes han de ser construidas con capacidad de desplazamiento entre sí. To be able to fix the material to be welded between the ultrasonic hammer and the anvil, these two parts must be constructed with the ability to move between them.

El objetivo de la presente invención consiste en obtener esta capacidad de desplazamiento de tal manera que se obtengan soldaduras con buena estanqueidad y que el dispositivo se desgaste poco. The objective of the present invention is to obtain this displacement capacity in such a way that welds with good sealing are obtained and that the device does not wear much.

Este objetivo se consigue mediante un dispositivo, según la reivindicación 1. En las reivindicaciones dependientes se dan a conocer realizaciones preferentes. This objective is achieved by means of a device according to claim 1. Preferred embodiments are disclosed in the dependent claims.

De acuerdo con la invención, el yunque está montado en una palanca de brazos paralelos que está formada por dos palancas paralelas entre sí que pueden girar alrededor de ejes. Mediante este montaje, se garantiza que la superficie del yunque y el martillo ultrasónico mantengan su paralelismo en cualquier posición. Debido a ello, se minimiza la abrasión entre el yunque y el martillo ultrasónico dado que siempre existe contacto plano en las diferentes posiciones que el yunque y el martillo ultrasónico pueden adoptar, uno con respecto al otro. According to the invention, the anvil is mounted on a parallel arm lever that is formed by two levers parallel to each other that can rotate about axes. This assembly ensures that the surface of the anvil and the ultrasonic hammer maintain their parallelism in any position. Due to this, abrasion between the anvil and the ultrasonic hammer is minimized since there is always flat contact in the different positions that the anvil and the ultrasonic hammer can take, with respect to each other.

Preferentemente, el yunque está montado de forma suspendida en la palanca de brazos paralelos para establecer de esta manera una posición de reposo definida. Preferably, the anvil is mounted suspended in the parallel arm lever in order to establish a defined rest position.

La palanca de brazos paralelos está fijada, preferentemente, en un soporte, pudiendo el mismo soporte girar alrededor de un eje. Si este eje está orientado aproximadamente perpendicular con respecto a los ejes alrededor de los que gira la palanca doble, entonces el yunque podrá adaptarse en dos dimensiones a la situación y a la orientación del martillo ultrasónico, de manera que se garantiza una presión de contacto uniforme entre el martillo ultrasónico y el yunque a lo largo de la soldadura. The parallel arm lever is preferably fixed on a support, the same support being able to rotate about an axis. If this axis is oriented approximately perpendicular with respect to the axes around which the double lever rotates, then the anvil can adapt in two dimensions to the situation and orientation of the ultrasonic hammer, so that a uniform contact pressure between the ultrasonic hammer and the anvil along the weld.

Además, el yunque está pretensado preferentemente con medios de pretensado en dirección hacia un martillo ultrasónico. De esta manera, el martillo ultrasónico puede presionar el material a soldar (por ejemplo, la bolsa laminar) contra el yunque y hacer retroceder ligeramente el yunque, de manera que entre el yunque y el martillo ultrasónico actúa una presión predefinida. In addition, the anvil is preferably prestressed with prestressing means in the direction of an ultrasonic hammer. In this way, the ultrasonic hammer can press the material to be welded (for example, the laminar bag) against the anvil and slightly retract the anvil, so that a predefined pressure acts between the anvil and the ultrasonic hammer.

Asimismo, el yunque está acoplado preferentemente a un medio de amortiguación que amortigua un desplazamiento del yunque. De esta manera, se consigue que, una vez juntados el martillo ultrasónico y el yunque, se establezca lo más rápidamente posible el contacto permanente entre el martillo y el yunque con el material a soldar fijado entre los mismos. De esta forma, se pueden evitar mayoritariamente las eventuales percusiones. Also, the anvil is preferably coupled to a damping means that dampens a displacement of the anvil. In this way, once the ultrasonic hammer and anvil are joined, permanent contact between the hammer and anvil with the material to be fixed between them is established as quickly as possible. In this way, possible percussions can be avoided mostly.

Resulta ventajosa una realización en la que varios yunques están dispuestos paralelamente uno al lado de otro. Para soldar varias zonas de soldadura, es posible soldar varias zonas de soldadura con un solo yunque. Además, se puede prever varios yunques independientes uno al lado de otro. Esto tiene la ventaja de que el yunque puede adaptar su posición individualmente al martillo ultrasónico, o bien al material fijado entremedio, de manera que se garantiza una presión uniforme sobre la zona de soldadura. Cuanto mayor es el yunque, más difícil resulta conseguir una presión uniforme en toda la zona de soldadura. A tal efecto, también la palanca de brazos paralelos está dispuesta preferentemente en un soporte giratorio propio. An embodiment in which several anvils are arranged parallel to one another is advantageous. To weld several welding zones, it is possible to weld several welding zones with a single anvil. In addition, several independent anvils can be provided side by side. This has the advantage that the anvil can adapt its position individually to the ultrasonic hammer, or to the material fixed in between, so that a uniform pressure on the welding zone is guaranteed. The larger the anvil, the more difficult it is to achieve a uniform pressure throughout the welding zone. For this purpose, the parallel arm lever is also preferably arranged on its own rotating support.

Para simplificar la construcción, varios soportes giratorios están montados en un soporte común. To simplify construction, several rotating stands are mounted on a common stand.

En las figuras se muestra, a título de ejemplo, una realización de la invención. Se muestran: An embodiment of the invention is shown in the figures by way of example. Shows:

Figura 1 una representación esquemática tridimensional de un yunque y su montaje; Figure 1 a three-dimensional schematic representation of an anvil and its assembly;

Figura 2 una vista en sección esquemática del dispositivo de la figura 1; Figure 2 a schematic sectional view of the device of Figure 1;

Figura 3 una representación esquemática tridimensional de varios yunques dispuestos uno al lado de otro. Figure 3 a three-dimensional schematic representation of several anvils arranged side by side.

En las figuras 1 y 2 se muestra un yunque 1 que está suspendido en una palanca de brazos paralelos colgante 2. La palanca de brazos paralelos 2 presenta dos palancas 6, 7 que están montadas con capacidad de giro alrededor de ejes 8, 9 y están orientadas paralelamente entre sí. En el extremo inferior de la palanca de brazos paralelos, se prevén dos piezas transversales 13 que unen ambos extremos inferiores de la palanca de brazos paralelos 6, 7 entre sí. A tal efecto se prevén dos ejes de giro 11 y 12. El yunque 1 está dispuesto en las piezas transversales inferiores 13. Los ejes 8 y 9 están montados en piezas transversales superiores 10 que están fijadas, a su vez, en un soporte 3. El soporte 3 se extiende esencialmente en dirección horizontal en alejamiento de la palanca de brazos paralelos 2. En su extremo está montado el soporte 3 con capacidad de giro alrededor de un eje 4. El soporte 3 está montado con este eje sobre un soporte 5. In figures 1 and 2 an anvil 1 is shown which is suspended on a hanging parallel arm lever 2. The parallel arm lever 2 has two levers 6, 7 that are mounted with the ability to rotate about axes 8, 9 and are oriented parallel to each other. At the lower end of the parallel arm lever, two transverse pieces 13 are provided which join both lower ends of the parallel arm lever 6, 7 to each other. For this purpose, two rotation axes 11 and 12 are provided. The anvil 1 is arranged in the lower cross-pieces 13. The axes 8 and 9 are mounted on upper cross-pieces 10 which are, in turn, fixed on a support 3. The support 3 extends essentially in a horizontal direction away from the parallel arm lever 2. At its end, the support 3 is rotatable about an axis 4. The support 3 is mounted with this axis on a support 5.

El yunque 1 presenta en su cara delantera nervios de soldadura 15, pudiéndose prever en este caso tanto un solo nervio, como también varios nervios, en función de cuántas soldaduras se han de realizar. La disposición de dos soldaduras muy próximas entre sí, una al lado de la otra ha resultado ser muy ventajoso. The anvil 1 has welding ribs 15 on its front face, being able to provide in this case both a single nerve, as well as several nerves, depending on how many welds are to be made. The arrangement of two welds very close to each other, side by side has proved to be very advantageous.

En el lado alejado del nervio de soldadura 15 establece contacto un elemento 14. En lugar de establecer contacto directamente en el yunque, también puede establecer contacto en la palanca de brazos paralelos o en otra pieza móvil. Este elemento 14 puede tener un efecto de muelle y/o de amortiguador. Con el elemento 14 u otro elemento de muelle se pretensa el yunque 1 en dirección hacia un martillo ultrasónico. El elemento 14 u el otro elemento de muelle puede presentar un émbolo que ejerce presión sobre el yunque 1, ya sea mediante aire a presión, mediante la fuerza de un resorte o un elemento de muelle u otra fuerza cualquiera. On the far side of the welding rib 15 an element 14 contacts. Instead of making contact directly on the anvil, it can also establish contact on the parallel arm lever or on another moving part. This element 14 may have a spring and / or shock absorber effect. With the element 14 or other spring element, the anvil 1 is pressed in the direction of an ultrasonic hammer. The element 14 or the other spring element may have a piston that exerts pressure on the anvil 1, either by means of pressurized air, by the force of a spring or a spring element or any other force.

El elemento 14 o un elemento dispuesto a su lado que actúa conjuntamente con el yunque 1 o una pieza móvil de la palanca de brazos paralelos 2 puede tener también un efecto amortiguador sobre el desplazamiento del yunque 1 y de la palanca de brazos paralelos 2, a efectos de amortiguar de esta manera el movimiento del yunque 1. Esto resulta ventajoso especialmente en un proceso de soldadura a elevadas velocidades, dado que, una vez juntados el martillo ultrasónico 16 y el yunque 1 se debe alcanzar lo más rápidamente posible una posición de reposo del yunque 1 para poder realizar la soldadura ultrasónica con la presión uniforme que existe entonces. The element 14 or an element arranged at its side that acts together with the anvil 1 or a movable part of the parallel arm lever 2 can also have a damping effect on the movement of the anvil 1 and the parallel arm lever 2, a effects of damping the movement of the anvil in this way 1. This is especially advantageous in a welding process at high speeds, since, once the ultrasonic hammer 16 and the anvil 1 are joined, a resting position must be reached as quickly as possible of the anvil 1 to be able to perform the ultrasonic welding with the uniform pressure that exists then.

Preferentemente, se prevé en cada extremo del yunque 1 un elemento 14, es decir, preferentemente dos elementos 14 por cada yunque. Preferably, an element 14 is provided at each end of the anvil 1, that is, preferably two elements 14 per each anvil.

El elemento de muelle (por ejemplo, el elemento 14) que pretensa el yunque 1 en la dirección hacia el martillo ultrasónico 16 puede estar conformado de tal manera que pretensa el yunque solamente hasta una cierta desviación máxima en dirección al martillo ultrasónico 16 sin poder, sin embargo, desviar el yunque más allá. En este caso resulta útil prever otro elemento que pretensa la palanca de brazos paralelos 2 o el yunque 1 ligeramente en está posición contra el elemento de muelle (por ejemplo, el elemento 14) para que el yunque 1 adopte de esta manera una posición definida. La fuerza que pretensa al yunque 1 en dirección hacia el elemento de muelle debería ser inferior, en este caso, a la fuerza que se pone a disposición mediante el elemento elástico. The spring element (for example, the element 14) that presses the anvil 1 in the direction towards the ultrasonic hammer 16 can be shaped such that it presses the anvil only up to a certain maximum deviation in the direction of the ultrasonic hammer 16 without power, however, deflect the anvil further. In this case it is useful to provide another element that presses the parallel arm lever 2 or the anvil 1 slightly in this position against the spring element (for example, the element 14) so that the anvil 1 thus adopts a defined position. The force that presses the anvil 1 towards the spring element should be inferior, in this case, to the force that is made available by the elastic element.

El martillo ultrasónico 16 de la figura 2 puede ser desplazado en alejamiento del yunque 1 para fijar el extremo superior del material a soldar 17 (una bolsa laminar) entre el yunque 1 y el martillo ultrasónico 16. A tal efecto, el martillo ultrasónico 16 es colocado entonces sobre el yunque 1 fijando el material 17. En la figura 2, el yunque 1 se desplazará ligeramente hacia la derecha, contrariamente a la fuerza de pretensado ejercida por el elemento de muelle 14. The ultrasonic hammer 16 of Figure 2 can be moved away from the anvil 1 to fix the upper end of the material to be welded 17 (a laminar bag) between the anvil 1 and the ultrasonic hammer 16. For this purpose, the ultrasonic hammer 16 is then placed on the anvil 1 fixing the material 17. In Figure 2, the anvil 1 will move slightly to the right, contrary to the prestressing force exerted by the spring element 14.

En esta posición, con la presión controlada entre el martillo ultrasónico 16 y el yunque 1 se puede realizar bien la soldadura del material 17. In this position, with the controlled pressure between the ultrasonic hammer 16 and the anvil 1, welding of the material 17 can be carried out well.

Sin embargo, a efectos de alejar el yunque del martillo ultrasónico también puede estar realizado el soporte 5 con capacidad de desplazamiento. Debido a ello, se crea el espacio para introducir la bolsa laminar entre el martillo ultrasónico y el yunque. Mediante un desplazamiento del soporte 5 en dirección hacia el martillo ultrasónico queda fijado el material a soldar 17. However, in order to move the anvil away from the ultrasonic hammer, the support 5 with displacement capacity can also be made. Due to this, the space is created to introduce the laminar bag between the ultrasonic hammer and the anvil. By moving the support 5 in the direction of the ultrasonic hammer, the material to be welded is fixed 17.

En la figura 3, se muestra una realización en la que varios yunques 1a hasta 1d están dispuestos uno al lado de otro en palancas de brazos paralelos 2a hasta 2d. Con este dispositivo es posible realizar varias operaciones de soldadura de varios materiales, uno al lado de otro. Por ejemplo, es posible soldar varias bolsas laminares dispuestas una al lado de otra. De esta manera, se pueden aumentar de forma significativa las tasas de producción. Cada uno de los yunques está montado en este caso independientemente del otro, de manera que cada yunque puede ser orientado individualmente por la palanca de brazos paralelos y la capacidad de giro del correspondiente soporte 3a hasta 3d. Los soportes 3 están, sin embargo, dispuestos sobre una soporte común 5, para obtener una construcción compacta. In Fig. 3, an embodiment is shown in which several anvils 1a to 1d are arranged side by side in parallel arm levers 2a to 2d. With this device it is possible to perform several welding operations of various materials, side by side. For example, it is possible to weld several laminar bags arranged next to each other. In this way, production rates can be significantly increased. Each of the anvils is mounted in this case independently of the other, so that each anvil can be individually oriented by the parallel arm lever and the turning capacity of the corresponding support 3a to 3d. The supports 3 are, however, arranged on a common support 5, to obtain a compact construction.

Preferentemente, cada yunque tiene asignado un martillo ultrasónico separado. Pero también es posible asignar solamente un martillo ultrasónico a varios yunques o a todos los yunques. Preferably, each anvil is assigned a separate ultrasonic hammer. But it is also possible to assign only one ultrasonic hammer to several anvils or all anvils.

Las bolsas u otros artículos a soldar pueden ser transportados a los yunques en una dirección a lo largo de la serie de yunques, o bien uno al lado de otro en una dirección perpendicular con respecto a la misma. The bags or other items to be welded may be transported to the anvils in one direction along the series of anvils, or side by side in a perpendicular direction with respect thereto.

Tal como se puede ver en las figuras 1 hasta 3, se prevé un nervio de soldadura 15 de dos partes. Esto proporciona dos soldaduras dispuestas una al lado de otra con las que se garantiza la estanqueidad, por ejemplo de bolsas laminares, de un modo muy seguro. Al estar el yunque 1 montado en la palanca de brazos paralelos 2, siempre pueden estar en contacto con el yunque 16 los dos nervios de estanqueidad, independientemente de la desviación As can be seen in Figures 1 to 3, a two-part welding rib 15 is provided. This provides two welds arranged side by side with which the sealing, for example of laminar bags, is guaranteed in a very safe way. Since the anvil 1 is mounted on the parallel arm lever 2, the two sealing ribs can always be in contact with the anvil 16, regardless of the deviation

5 del yunque de su posición de reposo. Ello resulta ventajoso para la realización de soldaduras bien estancas. 5 of the anvil from its resting position. This is advantageous for the realization of well-sealed welds.

Debido a que la presión ejercida sobre los dos nervios de soldadura siempre es más o menos idéntica, ninguno de estos dos nervios de soldadura presenta un mayor desgaste que el otro por la fricción que se produce durante el desplazamiento entre el yunque 1 y el martillo ultrasónico 16, de manera que, en este caso, la vida útil es muy Because the pressure exerted on the two welding ribs is always more or less identical, neither of these two welding ribs has greater wear than the other due to the friction that occurs during the movement between the anvil 1 and the ultrasonic hammer 16, so that, in this case, the service life is very

10 buena. 10 good.

Claims (11)

REIVINDICACIONES 1. Dispositivo para soldadura ultrasónica que comprende como mínimo un martillo ultrasónico (16) y como mínimo un yunque, caracterizado porque el yunque (1) está montado en una palanca de brazos paralelos (2) que presenta dos palancas (6, 7) paralelas entre sí, que están montadas con capacidad de giro alrededor de ejes (8, 9), de tal manera que se garantiza el paralelismo entre una superficie del yunque y el martillo ultrasónico en cualquier posición. 1. Device for ultrasonic welding comprising at least one ultrasonic hammer (16) and at least one anvil, characterized in that the anvil (1) is mounted on a lever with parallel arms (2) that has two parallel levers (6, 7) each other, which are mounted with the ability to rotate around shafts (8, 9), in such a way that the parallelism between an anvil surface and the ultrasonic hammer in any position is guaranteed.
2. 2.
Dispositivo, según la reivindicación 1, caracterizado porque el yunque (1) está montado de forma suspendida en la palanca de brazos paralelos (2). Device according to claim 1, characterized in that the anvil (1) is mounted suspended in the parallel arm lever (2).
3. 3.
Dispositivo, según la reivindicación 1 ó 2, caracterizado porque la palanca de brazos paralelos (2) está fijada en un soporte (3) que puede girar alrededor de un eje (4). Device according to claim 1 or 2, characterized in that the parallel arm lever (2) is fixed on a support (3) that can rotate about an axis (4).
4. Four.
Dispositivo, según la reivindicación 3, caracterizado porque el eje (4) alrededor del cual gira el soporte (3), está dispuesto aproximadamente en perpendicular con respecto a los ejes (8, 9) alrededor de los que gira la palanca de brazos paralelos (2). Device according to claim 3, characterized in that the axis (4) around which the support rotates (3), is arranged approximately perpendicular with respect to the axes (8, 9) around which the parallel arm lever rotates ( 2).
5. 5.
Dispositivo, según una de las reivindicaciones 1 a 4, caracterizado porque el yunque (1) está pretensado en dirección hacia el martillo ultrasónico (16) por medios de pretensado (14) tales como, por ejemplo, resortes, elementos de muelle tales como, por ejemplo, elementos de goma o resortes neumáticos. Device according to one of claims 1 to 4, characterized in that the anvil (1) is prestressed towards the ultrasonic hammer (16) by means of prestressing means (14) such as, for example, springs, spring elements such as, for example, rubber elements or pneumatic springs.
6. 6.
Dispositivo, según una de las reivindicaciones 1 a 5, caracterizado porque el yunque (1) está acoplado a un medio de amortiguación (14) que amortigua el desplazamiento del yunque (1). Device according to one of claims 1 to 5, characterized in that the anvil (1) is coupled to a damping means (14) that dampens the movement of the anvil (1).
7. 7.
Dispositivo, según una de las reivindicaciones 1 a 6, caracterizado porque se prevén varios yunques (1a, 1b, 1c, 1d), estando éstos dispuestos uno al lado de otro. Device according to one of claims 1 to 6, characterized in that several anvils (1a, 1b, 1c, 1d) are provided, these being arranged side by side.
8. 8.
Dispositivo, según una de las reivindicaciones 1 a 7, caracterizado porque se prevén varios yunques (1a, 1b, 1c, 1d) y cada uno está montado en su propia palanca de brazos paralelos (2). Device according to one of claims 1 to 7, characterized in that several anvils (1a, 1b, 1c, 1d) are provided and each is mounted on its own parallel arm lever (2).
9. 9.
Dispositivo, según la reivindicación 8, caracterizado porque cada palanca de brazos paralelos (2a, 2b, 2c, 2d) está dispuesta en un soporte giratorio, estando los diferentes soportes (3a, 3b, 3c, 3d) preferentemente montados sobre un soporte común (5). Device according to claim 8, characterized in that each parallel arm lever (2a, 2b, 2c, 2d) is arranged on a rotating support, the different supports (3a, 3b, 3c, 3d) being preferably mounted on a common support ( 5).
10. 10.
Dispositivo, según una de las reivindicaciones 1 a 9, caracterizado porque el dispositivo está destinado a la soldadura ultrasónica de elementos laminares, en especial, láminas de material compuesto. Device according to one of claims 1 to 9, characterized in that the device is intended for ultrasonic welding of laminar elements, especially composite sheets.
11. eleven.
Dispositivo, según una de las reivindicaciones 1 a 10, caracterizado porque el dispositivo está destinado a la soldadura de bolsas laminares llenas (17), en especial, en combinación con una estación de llenado de bolsas laminares (17). Device according to one of claims 1 to 10, characterized in that the device is intended for welding full laminar bags (17), especially in combination with a filling station for laminar bags (17).
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